A practical stereoselective synthesis of (2S, 4S)-4-tert-butoxycarbonylamino-2-methylpyrrolidine
摘要:
Two practical syntheses of (2S, 4S)-4-tert-butoxycarbonylamino-2-methylpyrrolidine, an important intermediate for quinolone antibacterial agents, have been developed through the combination of diastereo and enantioselective reactions starting from ethyl crotonate and L-alanine, respectively.
A practical stereoselective synthesis of (2S, 4S)-4-tert-butoxycarbonylamino-2-methylpyrrolidine
摘要:
Two practical syntheses of (2S, 4S)-4-tert-butoxycarbonylamino-2-methylpyrrolidine, an important intermediate for quinolone antibacterial agents, have been developed through the combination of diastereo and enantioselective reactions starting from ethyl crotonate and L-alanine, respectively.
Disclosed are compounds of Formula III. Also disclosed are salts of the compounds, pharmaceutical composition comprising the compounds or salts, and methods for treating HCV infection by administration of the compounds or salts.
Disclosed are compounds of Formula III. Also disclosed are salts of the compounds, pharmaceutical composition comprising the compounds or salts, and methods for treating HCV infection by administration of the compounds or salts.
Disclosed are compounds of Formula III. Also disclosed are salts of the compounds, pharmaceutical composition comprising the compounds or salts, and methods for treating HCV infection by administration of the compounds or salts.
Disclosed are compounds of Formula III. Also disclosed are salts of the compounds, pharmaceutical composition comprising the compounds or salts, and methods for treating HCV infection by administration of the compounds or salts.
公开了式 III 的化合物。还公开了这些化合物的盐、包含这些化合物或盐的药物组合物,以及通过施用这些化合物或盐治疗 HCV 感染的方法。